'Love Me ... Enough to Kill for Me?' Stepbrother Says Peterson Asked

Former Bolingbrook, Illinois police Sgt. Drew Peterson stands in front of the garage at his home in this November 17, 2007 file photo in Bolingbrook, Illinois. / Thomas Morphey, right, told ABC News' "Good Morning America" about his suspicions of his stepbrother, Drew Peterson, in his first network interview.

Morphey, who has spoken to authorities about his experiences, remembers that conversation as having occurred the day before Peterson's fourth wife, Stacy Peterson, disappeared. He also told "GMA" of other conversations he recalled with his stepbrother that convinced him Peterson was up to no good.

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Watch the full interview Monday morning on "Good Morning America."

Morphey told "GMA" that, at one point, his stepbrother mentioned a storage locker.

"According to reports in the Joliet Harold, Thomas Morphey states that he feels both abandoned and betrayed by Illinois State Police and Will County prosecutors," Brodsky's statement said. "Obviously law enforcement, who reportedly interrogated Morphey for 40 hours and checked out his story, doesn't think much of Mr. Morphey's credibility, so why should anyone else?"

The Marriages of Drew Peterson

Peterson, a father of four and former undercover police officer in the town of Bolingbrook, Ill., married his high school sweetheart at the age of 20. The marriage ended after he admitted to several affairs. Two years later, he married his second wife but again was said to be unfaithful.

During his third marriage, to Savio, police were called to the couple's house 18 times.

"I was a smart-ass," Peterson said. "She'd get mad at me for something. She'd be going off on a rampage and instead of calming her down ... [I] would set her off even worse."

Peterson and Savio's divorce proceedings were made final in 2002. Savio then wrote to Illinois assistant state attorney Elizabeth Fragale, expressing fears that Peterson might kill her.

Peterson discovered Savio's body in her Illinois home while married to his fourth wife, Stacy Peterson.

"I heard screaming upstairs and her friend Mary went upstairs and she was dead in the bathtub," Peterson said. "I checked for life signs and I knew at that particular time I didn't belong there, so I called for additional police units to show up and take charge of the scene."

An autopsy revealed Savio had fallen into the bath and drowned. Once Stacy Peterson went missing, police exhumed Savio's body and concluded she had been murdered.

Peterson has said Stacy decided to leave him in 2007 for someone else.

"She said she was leaving," Peterson said. "She found somebody else. She'll be gone for a while."

Police investigating her disappearance found an e-mail to friends written before she vanished in which she confided to being in a "controlling, manipulative and somewhat abusive" relationship.

Peterson has said "that doesn't even sound like something she would say," adding, "I really question the origin of that e-mail."

Stacy's friend Pam Bosco claims to have been told by Stacy, "I love you. If anything happens to me, he killed me. It wasn't an accident."